Search a number
-
+
80293985 = 559272183
BaseRepresentation
bin1001100100100…
…11000001100001
312121002100122022
410302103001201
5131023401420
611544551225
71663326152
oct462230141
9177070568
1080293985
1141362072
1222a82515
1313834145
14a941929
1570b0c25
hex4c93061

80293985 has 8 divisors (see below), whose sum is σ = 97986240. Its totient is φ = 63146224.

The previous prime is 80293973. The next prime is 80293991. The reversal of 80293985 is 58939208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80293985 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135797 + ... + 136386.

It is an arithmetic number, because the mean of its divisors is an integer number (12248280).

Almost surely, 280293985 is an apocalyptic number.

It is an amenable number.

80293985 is a deficient number, since it is larger than the sum of its proper divisors (17692255).

80293985 is a wasteful number, since it uses less digits than its factorization.

80293985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272247.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 80293985 is about 8960.6911005792. The cubic root of 80293985 is about 431.4141023580.

The spelling of 80293985 in words is "eighty million, two hundred ninety-three thousand, nine hundred eighty-five".

Divisors: 1 5 59 295 272183 1360915 16058797 80293985